//商品统计
function queryPr_G(arr1){
var arr2=_AW.groupby(arr1,'gclass,gname','num');
	var arr3=[];
	for(var i=0;i<arr2.length;i++){
		var o ={};
		o['gclass']=arr2[i]['gclass'];
		o['gname']=arr2[i]['gname'];		
		o['num']=round2(arr2[i]['num']['sum'],3);		//月交易数量
		arr3.push(o);
	}
	return arr3;	
}